This is a pest anemone called Aiptasia. These can stain and harm your coral, but are harmless to fish. It’s a not so fun part of the trade but easy to treat. There are products you can buy to help rid your system of these pests. Here we are demonstrating how to treat them using “Aiptasia Away”. Red Sea also has a product called “Aiptasia -X” that works just as well. If you have questions feel free to call our store and ask for a salt water specialist. @redsea.aquatics #aiptasiaX #aiptasiaaway #pestanenome #saltwatertank #reeftanks #reeflife #corallife #marinelife #aquatics #tank #fishtank #tanklife #shoplical #aiptasia #supportlocalbusiness #followforfollow #petkingdom #petkingdomsd ... See MoreSee Less